[YARN-1867] NPE while fetching apps via the REST API

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.4.0
• Fix Version/s: 2.4.0
• Component/s: resourcemanager
• Labels: rest_api
• Target Version/s: 2.4.0
• Hadoop Flags: Reviewed
• Assignee: Vinod Kumar Vavilapalli
• Reporter: Karthik Kambatla
• Created: 24/Mar/14 20:35
• Updated: 03/Nov/14 18:34
• Resolved: 26/Mar/14 03:05

Description

We ran into the following NPE when fetching applications using the REST API:

INTERNAL_SERVER_ERROR
java.lang.NullPointerException
at org.apache.hadoop.yarn.server.security.ApplicationACLsManager.checkAccess(ApplicationACLsManager.java:104)
at org.apache.hadoop.yarn.server.resourcemanager.webapp.RMWebServices.hasAccess(RMWebServices.java:123)
at org.apache.hadoop.yarn.server.resourcemanager.webapp.RMWebServices.getApps(RMWebServices.java:418)